package com.cmeduSystem.webadmin.app.service.impl;

import cn.hutool.core.collection.CollUtil;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.cmeduSystem.webadmin.app.service.*;
import com.cmeduSystem.webadmin.app.dao.*;
import com.cmeduSystem.webadmin.app.model.*;
import com.cmeduSystem.common.core.base.dao.BaseDaoMapper;
import com.cmeduSystem.common.core.object.TokenData;
import com.cmeduSystem.common.core.object.MyRelationParam;
import com.cmeduSystem.common.core.object.CallResult;
import com.cmeduSystem.common.core.base.service.BaseService;
import com.cmeduSystem.common.sequence.wrapper.IdGeneratorWrapper;
import com.cmeduSystem.common.redis.util.CommonRedisUtil;
import com.github.pagehelper.Page;
import lombok.extern.slf4j.Slf4j;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;

/**
 * 单位管理数据操作服务类。
 *
 * @author xulei
 * @date 2025-09-04
 */
@Slf4j
@Service("generalUnitBasicService")
public class GeneralUnitBasicServiceImpl extends BaseService<GeneralUnitBasic, String> implements GeneralUnitBasicService {

    @Autowired
    private IdGeneratorWrapper idGenerator;
    @Autowired
    private CommonRedisUtil commonRedisUtil;
    @Autowired
    private GeneralUnitBasicMapper generalUnitBasicMapper;
    @Autowired
    private GlobalDictItemCmeduService globalDictItemCmeduService;

    /**
     * 返回当前Service的主表Mapper对象。
     *
     * @return 主表Mapper对象。
     */
    @Override
    protected BaseDaoMapper<GeneralUnitBasic> mapper() {
        return generalUnitBasicMapper;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public GeneralUnitBasic saveNew(GeneralUnitBasic generalUnitBasic) {
        generalUnitBasicMapper.insert(this.buildDefaultValue(generalUnitBasic));
        return generalUnitBasic;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveNewBatch(List<GeneralUnitBasic> generalUnitBasicList) {
        if (CollUtil.isNotEmpty(generalUnitBasicList)) {
            generalUnitBasicList.forEach(this::buildDefaultValue);
            generalUnitBasicMapper.insertList(generalUnitBasicList);
        }
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean update(GeneralUnitBasic generalUnitBasic, GeneralUnitBasic originalGeneralUnitBasic) {
        super.setAutoCodeFieldWithOriginalValue(generalUnitBasic, originalGeneralUnitBasic);
        generalUnitBasic.setCreateUserId(originalGeneralUnitBasic.getCreateUserId());
        generalUnitBasic.setUpdateUserId(TokenData.takeFromRequest().getUserId());
        generalUnitBasic.setCreateTime(originalGeneralUnitBasic.getCreateTime());
        generalUnitBasic.setUpdateTime(new Date());
        // 这里重点提示，在执行主表数据更新之前，如果有哪些字段不支持修改操作，请用原有数据对象字段替换当前数据字段。
        UpdateWrapper<GeneralUnitBasic> uw = this.createUpdateQueryForNullValue(generalUnitBasic, generalUnitBasic.getId());
        return generalUnitBasicMapper.update(generalUnitBasic, uw) == 1;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean remove(String id) {
        return generalUnitBasicMapper.deleteById(id) == 1;
    }

    @Override
    public List<GeneralUnitBasic> getGeneralUnitBasicList(GeneralUnitBasic filter, String orderBy) {
        return generalUnitBasicMapper.getGeneralUnitBasicList(filter, orderBy);
    }

    @Override
    public List<GeneralUnitBasic> getGeneralUnitBasicListWithRelation(GeneralUnitBasic filter, String orderBy) {
        List<GeneralUnitBasic> resultList = generalUnitBasicMapper.getGeneralUnitBasicList(filter, orderBy);
        // 在缺省生成的代码中，如果查询结果resultList不是Page对象，说明没有分页，那么就很可能是数据导出接口调用了当前方法。
        // 为了避免一次性的大量数据关联，规避因此而造成的系统运行性能冲击，这里手动进行了分批次读取，开发者可按需修改该值。
        int batchSize = resultList instanceof Page ? 0 : 1000;
        this.buildRelationForDataList(resultList, MyRelationParam.normal(), batchSize);
        return resultList;
    }

    @Override
    public CallResult verifyRelatedData(GeneralUnitBasic generalUnitBasic, GeneralUnitBasic originalGeneralUnitBasic) {
        String errorMessageFormat = "数据验证失败，关联的%s并不存在，请刷新后重试！";
        //这里是基于字典的验证。
        if (this.needToVerify(generalUnitBasic, originalGeneralUnitBasic, GeneralUnitBasic::getDwlbm)
                && !globalDictItemCmeduService.existOne("itemId", generalUnitBasic.getDwlbm())) {
            return CallResult.error(String.format(errorMessageFormat, "单位类别码"));
        }
        return CallResult.ok();
    }

    private GeneralUnitBasic buildDefaultValue(GeneralUnitBasic generalUnitBasic) {
        if (generalUnitBasic.getId() == null) {
            generalUnitBasic.setId(idGenerator.nextStringId());
        }
        TokenData tokenData = TokenData.takeFromRequest();
        generalUnitBasic.setCreateUserId(tokenData.getUserId());
        generalUnitBasic.setUpdateUserId(tokenData.getUserId());
        Date now = new Date();
        generalUnitBasic.setCreateTime(now);
        generalUnitBasic.setUpdateTime(now);
        commonRedisUtil.generateAndSetAutoCodeField(generalUnitBasic, super.calculateAutoCodeField());
        return generalUnitBasic;
    }
}
